Hi @Balaji Suresh ,
You can use a public certificates, you can follow the guide made by Kevin over here:
- Using Public Certificates With SCOM Part 1
- Using Public Certificates With SCOM Part 2
- Using Public Certificates With SCOM Part 3
You shouldn’t need the FQDN, should work also with short name as long as the certificate matches with the Full computer name of your workgroup computer.
Some more helfpul links:
- Monitoring non-domain members with OM 2012
- Monitor Workgroup / DMZ servers in SCOM using Certificates
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Best regards,
Leon